This document reviews a gravity-based power generation system. The system works by converting the potential energy of an object moving from a higher to lower altitude into kinetic energy. This kinetic energy is then used to generate electricity with a DC electric motor. The system uses two cabs connected by a rope wound around a drum. As one cab moves down and the other up, the drum rotates, powering gears connected to the motor. Measurements from a voltmeter show the amount of power generated varies with the load in the cabs. Gravity-based systems offer advantages like being eco-friendly, using an unlimited source, and generating power continuously. The design presents a simple way to harness gravitational energy for electricity production.

1. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 5066
A Review on Gravity based Power Generation System
Bhagyesh Talekar
Scholar Mechanical Engineering, S.B. Jain Institute of Technology Management and Research, Nagpur, India
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Abstract -Due to the increase in the energy crises, a conversation of energy become the biggest issue in this modern
century. Now a day’s factors like global warming and pollution are affecting our life tremendously, so the use of non-
renewable sources becomes limited. There is a need for generating power with the help of renewable sources. Gravity is the
source that is abundantly present on the earth and it can be conveniently used as sources to run any system. The basic concept
of power generation with the help of gravity is, when an object moves down from higher altitude to a lower altitude, kinetic
energy is obtained by converting potential energy. The system works on the principle of gravitational force which is used to
obtains electricity with the help of DC electric motor. The power generation obtains measured by using the voltmeter. This
system gives more output than any other gravity-based system.
Key Words: Gravitational energy, Renewable source, Power Generation System, CAD model, Kinetic Energy,
Potential Energy
1. INTRODUCTION
In this contemporary era, pollution is increasing day by day. Global warming is the measure of the cause of pollution. Non-
renewable resources are also responsible for global warming. If we talk about electricity generation, then non-renewable
sources like coal and diesel are used, but the availability of such resources is very less and predictors predicted that in the
coming 30years non- renewable resources will vanish. To overcome the problem of pollution and availability of non-
renewable resources, there is one solution which is renewable resources, for example, solar energy, gravitational energy,
tidal energy, geothermal energy, wind energy, etc. These resources are available in an abundant amount also they are
pollution-free. But some problems are to be there with renewable resources. Solar energy is available in the day time
because at night the sun is not present, wind energy depends on the speed of the wind, etc. But gravitational energy is
available at anytime and anywhere. If the concept of gravity-based power generation system comes to exist, then many
nuclear or fossil plants can be exempted which is hazardous for human life. Hence this paper is focused on a system that
generates electrical energy with the help of gravitational force. The main objective of this paper is to design the system
which will generate power with the help of gravity.
2. LITERATURE REVIEW
[1] Chun Chao Wang and Yuhsuiang Wang invented a mechanism that generated power by using gravity. The Principle of
working of this mechanism was to convert the potential energy of gravity into kinetic energy un-interruptedly. [1]
[2] Design Project of Mechanical Engineering Students – “One-way Unidirectional mechanism.” This is a design and
fabrication of small-scale mechanisms for converting the non-uniform and bi-directional motion of rotation to uniform
and one-directional rotation.
[3] The phenomenon of gravitational energy was discovered in the year 1687 by Sir Issac Newton. Maximo Gomez Nacer
design the system for obtaining electricity by means of gravity, by using pendulum whose mass and velocity deliver
energy for electricity generation. [2]
3. METHODOLOGY
3.1 Working Principle:
When the body having mass moves down from higher altitude to lower altitude its stored potential energy is converted
into kinetic energy and this kinetic energy is utilized to generate electricity.

2. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 5067
Fig.1. CAD Model of Gravity Based Power Generation System
3.2 Working
The system consists of 2 cabs which are supported with the help of rails. Both cabs are connected with the help of the
rope which is wounded on a drum. This system consists of the pulley which supports rope to move in a frictionless
motion. As the weight is added on the cab it tends to move downward motion while another cab moves upward. Due to
such a motion revolution of drum takes place by rope. The shaft of the drum further connected with the gear system
which will increase the revolution at the output of the shaft of gear. Thus, the gear shaft is coupled with D.C. electric
motor which generates electrical energy. Due to the variation in the load of the cab generation of power varies. This
power will measure by the voltmeter.
Fig.2. Block Diagram of Gravity Based Power Generation System

3. International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 07 Issue: 03 | Mar 2020 www.irjet.net p-ISSN: 2395-0072
© 2020, IRJET | Impact Factor value: 7.34 | ISO 9001:2008 Certified Journal | Page 5068
4. ADVANTAGES
[1] The mechanism is completely eco friendly
[2] Source uses by the system is limitless
[3] It can be available 24*7
[4] The small amount of investment for long term generation of power
[5] Efficiency is more as compared to another gravity-based system
5. CONCLUSION
The Gravity based power generation system gives many advantages such as the use of eco-friendly source which
eliminates many problems such as pollution, non-hazardous, simplified mechanism, etc. It can generate electricity
independently as it does not need any external sources such as water, coal, etc. The method of power generation is
through kinetic energy which obtains from gravity.
6. REFERENCES
[1] Md. Shahed Hossen, Md. Tazul Islam, Sabir Hossain, “DESIGN AND FABRICATION OF A GRAVITY POWERED LIGHT”,
International Conference on mechanical engineering and renewable energy 2015, (ICMERE2015) 26-29 NOVEMBER,
2015, Chittagong, Bangladesh
[2] Yogesh Kudale, Devyani Padwal, Pradeep Kopnar, “GRAVITY DRIVEN ELECTRICITY GENERATION MECHANISM”,
International Journal of Engineering Research and Development, Volume 14, issue 1 January 2018, PP.32-36
[3] Md. Muqtqr Ahmed, Heena Naaz, “POWER GENERATION THROUGH GRAVITY AND KINETIC ENERGY” International
Journal of Scientific and Research Publications, Volume 4, issue 1 January 2014, ISSN2050-353
[4] Chun-Chao Wang, “GRAVITY POWER GENERATION MECHANISM”, United States patent number 0115195
[5] Overview of industrial and renewable energy replacement, www.adeniumcapital.com
[6] Patrick J. Kelly, “PRACTICAL GUIDE TO FREE ENERGY DEVICES”, version 32.5, 12 December 2017